Contrary to popular belief, there is such a thing as too much exercise. Compulsive exercise is another way to "purge" calories and it can be as dangerous as Anorexia and Bulimia. The main goal when an individual is suffering from compulsive exercise can be burning calories, relieving the guilt from eating/bingeing, or to give them the permission to eat. The exercise may give the person a sense of control, power and self-respect.